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Fault Diagnose Based on Causal Model of Cascaded Differ Inverter
Author(s): 
Pages: 33-36
Year: Issue:  6
Journal: TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY

Keyword:  级联型逆变器故障诊断因果模型BP神经网络;
Abstract: 当级联型逆变器采用差补PWM技术时,开关器件的开路故障可观测性大大增加.本文通过对两重级联型差补逆变器的分析,建立了故障与输出波形之间的因果模型,并且证明这一模型是一一对应的.介绍了采用BP神经网络对输出波形进行故障识别的方法,实验证明了该方法的有效性.
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